Results for “read rows”
Small, practical examples. Search by task or narrow things down below.
Transform a vector into a separate result
C++: Pre-size the output before writing through its iterator.
C++✓ Tested
Transform an observable value
Transform an observable value with a standalone Angular component and explicit browser behavior.
Angular✓ Tested
Treat an empty trimmed value as missing
SQL: NULLIF converts an empty string to NULL before a fallback is applied.
SQL✓ Tested
Treat an empty trimmed value as missing
SQL Server: NULLIF converts an empty string to NULL before a fallback is applied.
SQL Server✓ Tested
Treat an empty trimmed value as missing
Postgres: NULLIF converts an empty string to NULL before a fallback is applied.
Postgres✓ Tested
Treat an empty trimmed value as missing
SQLite: NULLIF converts an empty string to NULL before a fallback is applied.
SQLite✓ Tested
Trim surrounding ASCII whitespace
C++: Find the first and last non-whitespace bytes before taking a substring.
C++✓ Tested
Turn a condition into a result label
SQL: Use CASE to describe stock availability for each row.
SQL✓ Tested
Turn a condition into a result label
SQL Server: Use CASE to describe stock availability for each row.
SQL Server✓ Tested
Turn a condition into a result label
Postgres: Use CASE to describe stock availability for each row.
Postgres✓ Tested
Turn a condition into a result label
SQLite: Use CASE to describe stock availability for each row.
SQLite✓ Tested
Turn known group values into columns
SQL: Conditional aggregation gives a portable pivot when the category set is known.
SQL✓ Tested